Originally posted by 53k
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Today, I set up the 63GT exactly as SScopelli's. All it required was cutting a wedge shaped piece from the lower corner of the OEM compressor mount for belt clearance, and a shorter belt. This got away from the OEM setup with two belts on the WP/fan pulley and resultant excess side load on the WP bearing. Only potential problem I can see is the (now) one WP/fan pulley only has about 45 degrees of belt wrap. Whereas, with the OEM setup, both of the two belts had over 90 degrees of wrap. The two belts were overkill, but the single belt may need more than 45 degrees of wrap, to prevent fan/WP slippage. Will find out soon, as I plan to exercise the car a few hundred miles this weekend. Historically, this motor runs cool as a cucumber under all conditions. So f it begins to run warmer, I will immediately suspect WP/fan belt slippage. If that occurs, will just have to spend the big bucks for the Summit/J&N setup.
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